Alba 32880hdf Flashing standby

[anotherdude]

Re: Alba 32880hdf Flashing standby

just had a look in my shed at all my main boards sorry but non match the number at all not even close.

cheers for looking vince

might just scrap it, new board is £37

was half considering going for a hitachi board which is the same argos brand etc but has 2 hdmi ports but only £15 all the same connections etc

suppose i'd have to look at the schematic first to see if they even use the same voltages etc

[tom66]

Re: Alba 32880hdf Flashing standby

Should work if PSU were the same.

[anotherdude]

Re: Alba 32880hdf Flashing standby

Should work if PSU were the same.

no way of knowing that though is there unless i could find out what set it came out of and match the psu, relying on google too

and that board has 2 hdmi and component connections whereas the original only has 1 hdmi and no component, so the plastic would not even fit without some persuasion

[vinceroger69]

Re: Alba 32880hdf Flashing standby

whats screen make is in your set?

[anotherdude]

Re: Alba 32880hdf Flashing standby

whats screen make is in your set?

not sure i've sealed it back up, going to scrap it i think or get back what i paid

board i was looking at has the touch panel connection missing at the top and the one listed on flattvparts also has different placed connections, not worth the risk to me to put another 30-40 into it when i paid £20 for it

might just keep a eye out for a board

http://flattvparts.co.uk/index.php?m...ducts_id=15556 audio connection/front led is at the top i'm guessing whereas mine has 2 connecitons below the scart

tried ringing vestel UK they won't give me any info told me to speak to argos which is a waste of time, guessing all i need is a new eeprom with the correct info for the board

messages clydeuk anyway to see if he can help at all, could the eeprom be reprogrammed using a external programmer?

Have i got this wrong or right here, if theres a nand device onboard surely theres more to the firmware than eeprom, could it not be the nand device that has the error (incompatible/corrupt) i've reset nands before on xbox360's it's usually a 2 pin short at power up

[Clydeuk]

Re: Alba 32880hdf Flashing standby

Unfortunately I don't know how to post binaries, or even whether the forum allows it. There isn't an EEPROM in the correct sense of the term, there are 2 ic's which hold the firmware. The initial boot code is stored in the SPI flash i.c U158, the main firmware is in a NAND flash. It is possible to remove U158 and using a programmer flash the file "mboot.bin" which is one of the 2 files contained in the firmware. That will get the set back to a bootable state if it is the problem, though if the main firmware is corrupted you may get flashing LED's. At least if you can get the boot up stage working it will accept a file from the USB.

You don't need to see a display to do the upgrade, in fact you don't get a display at all during the flashing process. Power off, plug in USB, press and hold OK on the remote, apply power keeping OK pressed until the LED starts to flash rapidly, at this stage you can release the OK button and then wait (about a minute or so). If after a few minutes you don't get a solid LED and the welcome screen chances are there's a fault elsewhere.

[anotherdude]

Re: Alba 32880hdf Flashing standby

Unfortunately I don't know how to post binaries, or even whether the forum allows it. There isn't an EEPROM in the correct sense of the term, there are 2 ic's which hold the firmware. The initial boot code is stored in the SPI flash i.c U158, the main firmware is in a NAND flash. It is possible to remove U158 and using a programmer flash the file "mboot.bin" which is one of the 2 files contained in the firmware. That will get the set back to a bootable state if it is the problem, though if the main firmware is corrupted you may get flashing LED's. At least if you can get the boot up stage working it will accept a file from the USB.

You don't need to see a display to do the upgrade, in fact you don't get a display at all during the flashing process. Power off, plug in USB, press and hold OK on the remote, apply power keeping OK pressed until the LED starts to flash rapidly, at this stage you can release the OK button and then wait (about a minute or so). If after a few minutes you don't get a solid LED and the welcome screen chances are there's a fault elsewhere.

thanks clyde, appreciate your input, zippyshare is fast and has direct links no waiting etc if you could may help others too

how would i go about programming the ic?

[Clydeuk]

Re: Alba 32880hdf Flashing standby

don't junk the set just yet, I feel its worth having a play around with it. might be worth getting a couple of SPI i.c's (I think the one in the set is MX25L512, though I had a set with a different one, I don't think it's important as long as it's a 512Mbit SPI)

I used a cheap "willem" clone programmer, it was no walk in the park though as my programmer doesn't have 3.3 volts and the SPI flash is not 5 volt tolerant. I was able to get it to work using 2 diode drops from the 5 volt supply. Also as it's a surface mount device I had to solder it to an old board and use 8 wires to hook up to the willem socket.

It's all good fun. I still can't get my head around the firmware itself, I keep going on and off this one as in the end the brain starts to hurt. My JVC set only needs the tuner type changing from SONY to LG, but since it's a Linux kernel it involves some messing with modules. Any hacking of the main firmware file results in it failing a AES test I think, or maybe it does some checksum tests.

Maybe one day I'll sort it, I will try and upload the firmware files I have to some cloud storage and point you in the direction so you can play around with them.

[tom66]

Re: Alba 32880hdf Flashing standby

Potentially could harvest that chip for mboot.bin if you want to give it another go. Couldn't read it though, just send it to you.

[Clydeuk]

Re: Alba 32880hdf Flashing standby

I'll have a look at that zippyshare and see.

By the way the file named mboot.bin is identical for all versions of the firmware, the only file that's different between variants is the file mb62_en.bin

thanks clyde, appreciate your input, zippyshare is fast and has direct links no waiting etc if you could may help others too

how would i go about programming the ic?

[anotherdude]

Re: Alba 32880hdf Flashing standby

Potentially could harvest that chip for mboot.bin if you want to give it another go. Couldn't read it though, just send it to you.

ye thats what i was hoping tom, as the rest of the board is useless and looking at the firmwares i've downloaded all the mboots are the same so i'm guessing there all generic from board to board

will pm my address if thats ok, thanks again tom send me your paypal to sort you postage etc

[anotherdude]

Re: Alba 32880hdf Flashing standby

I'll have a look at that zippyshare and see.

By the way the file named mboot.bin is identical for all versions of the firmware, the only file that's different between variants is the file mb62_en.bin

i'm confused a bit, if the mboot is the same wouldn't the main board still have the ability to boot into the update state, unless i've powered off during the reprogramming of that IC

[tom66]

Re: Alba 32880hdf Flashing standby

Give me a few days to check the board I put in the set to sort it works (Toshiba 32BV702, all Vestel junk), once that is all golden can send you the chip freshly hot-aired off.

[anotherdude]

Re: Alba 32880hdf Flashing standby

Give me a few days to check the board I put in the set to sort it works (Toshiba 32BV702, all Vestel junk), once that is all golden can send you the chip freshly hot-aired off.

ok tom thanks, just to clear things up voltage side, the main board being at fault would cause the voltage drop on the 12v line?

the 24v pin not outputting a voltage is that main board too, no request from the mainboard for the 24v?

[tom66]

Re: Alba 32880hdf Flashing standby

Yeah if the PSU does not get the ON signal no rails will come up...

[anotherdude]

Re: Alba 32880hdf Flashing standby

Yeah if the PSU does not get the ON signal no rails will come up...

ok thanks tom for clearing that up

don't suppose you had a chance to remove that eeprom?

[tom66]

Re: Alba 32880hdf Flashing standby

Still waiting for bits to finish the Toshiba, will update when all is good with that.

[anotherdude]

Re: Alba 32880hdf Flashing standby

Still waiting for bits to finish the Toshiba, will update when all is good with that.

any joy tom, still searching for a board in the mean time

[tom66]

Re: Alba 32880hdf Flashing standby

Still busy, had some coursework unfortunately- should be able to do this in the next week or so..

[anotherdude]

Re: Alba 32880hdf Flashing standby

Still busy, had some coursework unfortunately- should be able to do this in the next week or so..

ok thanks tom, just ordered a 17MB62-1 V2, mine being the v1 hoping theres no difference only £13 too so heres hoping